dichotomous

[ dih-kot-uh-muhs ]

/ dɪˈkɒt ə məs /

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adjective

divided or dividing into two parts.

of or relating to dichotomy.

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Origin of dichotomous

1680–90; <Late Latin dichotomos<Greek dichótomos.See dicho-, -tome, -ous

di·chot·o·mous·ly, adverbdi·chot·o·mous·ness, nounnon·di·chot·o·mous, adjectivenon·di·chot·o·mous·ly, adverb

un·di·chot·o·mous, adjectiveun·di·chot·o·mous·ly, adverb

Plant-body a dichotomously branching thallus, terrestrial or aquatic.
The Manual of the Botany of the Northern United States|Asa Gray
From each nodal-point (between every three meshes) arises a bristle-shaped radial spine, which is dichotomously branched.
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia)|Ernst Haeckel
The distal ends of the feet bear three or four much larger and stouter branches, which are again dichotomously branched.
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index|Ernst Haeckel
The distal ends of the feet are dichotomously branched, with stouter simple fork-branches.
Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index|Ernst Haeckel